I found this photo of Crawford for her movie "This Modern Age". I thought it was very interesting, because it looks very much like Greta Garbo's look in "Inspiration". Both were produced by MGM and both were released in 1931 ("Inspiration" was shot in Fall 1930; "This Modern Age" was shot in Spring 1931).

Joan Crawford on the right, Jessie Mathews on the left (Mathews was an Actress, dancer and singer on the stage, and UK cinema star in films of the 1930s. Astoundingly graceful and fluid in the dance. (imdb))